JP3940070B2 - Pedal device for automobile - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an automobile pedal device that is operated by placing a foot of an occupant and depressing the foot.
[0002]
[Prior art]
A search for prior art document information was conducted using the international patent classification as a search field, but no corresponding document could be found. The reason seems to be that the present invention relates to a very detailed structure.
Therefore, the present inventors will explain the conventional technique with reference to the drawings instead of the prior art document information.
[0003]
FIG. 6 is a diagram illustrating a conventional automobile pedal device.
By depressing the accelerator pedal 101, the automobile pedal device 100 pushes the accelerator pedal 101 downward from the throttle closed position P1 (position indicated by the solid line) against the spring force of the torsion spring 102 as indicated by the arrow a, and the throttle The opening is adjusted.
[0004]
When the accelerator pedal 101 reaches the throttle fully open position P2 (maximum depression position indicated by an imaginary line), the base end portion 104 of the accelerator lever 103 comes into contact with the stopper 105, and the accelerator pedal 101 can be positioned at the throttle fully open position P2. it can.
[0005]
According to the automobile pedal device 100, in the unlikely event that a vehicle collides, the accelerator lever 103 in contact with the stopper 105 can be deformed to reduce the load on the passenger's foot from the accelerator pedal 101.
[0006]
However, since the stopper 105 is located away from the accelerator pedal 101, for example, even if the stopper 105 has a slight mounting error, the stroke of the accelerator pedal 101 changes greatly. In order to suppress the change in the stroke of the accelerator pedal 16 to a small value, it is necessary to accurately form the shape of the stopper 105 and to reduce the assembly tolerance.
For this reason, it takes time to process and assemble the stopper 105, which hinders cost reduction.
[0007]
Further, when the upper end portion 104 of the accelerator lever 103 is brought into contact with the stopper 105 and the accelerator pedal 101 is positioned at the throttle fully open position P2, the upper end portion 104 of the accelerator lever 103 and the stopper 105 are brought into substantially line contact. Therefore, it is difficult to stably stop the accelerator pedal 16 at the throttle fully open position P2.
[0008]
FIG. 7 is a diagram for explaining another example of a conventional automobile pedal device.
As with the automobile pedal apparatus 100 of FIG. 7, the automobile pedal apparatus 110 depresses the accelerator pedal 111, thereby depressing the accelerator pedal 111 against the spring force of the torsion spring 112 and the throttle closed position P <b> 1 (position indicated by a solid line). ) To lower the position as indicated by an arrow b to adjust the throttle opening.
[0009]
When the accelerator pedal 111 reaches the throttle fully open position P2 (maximum depression position indicated by an imaginary line), the stopper portion 114 of the accelerator lever 113 comes into contact with a carpet (not shown) that covers the dashboard 115, and the accelerator pedal 111 is throttled. It can be positioned at the fully open position P2.
[0010]
According to this automobile pedal device 111, in the unlikely event that a vehicle collides, the stopper portion 114 in contact with the carpet of the dashboard 115 can be deformed to reduce the load applied to the passenger's foot from the accelerator pedal 111. .
[0011]
However, since the stopper portion 114 is in contact with the carpet of the dashboard 115, the carpet may be broken and a hole may be formed in the carpet.
Further, when the stopper 114 is brought into contact with the carpet of the dashboard 115 and the accelerator pedal 111 is stopped at the throttle fully open position P2, the stopper 114 and the carpet are brought into substantially line contact. Therefore, it is difficult to stably stop the accelerator pedal 111 at the throttle fully open position P2.
[0012]
[Problems to be solved by the invention]
FIG. 8 is a diagram for explaining another example of a conventional automobile pedal device.
As in the case of the automobile pedal device 100 of FIG. 7, the automobile pedal device 120 depresses the accelerator pedal 121, thereby depressing the accelerator pedal 121 against the spring force of the torsion spring 122 and the throttle closed position P <b> 1 (position indicated by a solid line). ) To lower the position as indicated by the arrow c to adjust the throttle opening.
[0013]
When the accelerator pedal 121 reaches the throttle fully open position P2 (maximum depression position indicated by an imaginary line), a stopper portion 123 integrally attached to the lower portion of the accelerator pedal 121 comes into contact with a carpet (not shown) of the dashboard 124, The accelerator pedal 121 can be positioned at the throttle fully open position P2.
[0014]
According to this automobile pedal device 120, in the unlikely event of a vehicle collision, the stopper portion 123 can be deformed to reduce the load applied to the passenger's foot from the accelerator pedal 121.
Furthermore, by making the bottom surface 125 of the stopper portion 123 flat, the stopper portion 123 can be brought into surface contact with the carpet of the dashboard 124.
As a result, the carpet can be made difficult to tear, and the accelerator pedal 121 can be stationary to a certain degree of stability at the throttle fully open position P2.
[0015]
However, since the pedal device 120 for an automobile has the stopper portion 123 attached to the lower portion of the accelerator pedal 121, the so-called accelerator pedal 121 is put on a high clog.
For this reason, when the stopper 123 is brought into contact with the carpet of the dashboard 124 and the accelerator pedal 121 is positioned at the throttle fully open position P2, the accelerator pedal 121 may be wobbled. There was still room for improvement.
[0016]
Furthermore, it is possible to prevent the carpet from being broken to some extent by bringing the stopper portion 123 into surface contact with the carpet of the dashboard 124, but this is not sufficient, and there is still room for improvement in this respect.
[0017]
Therefore, an object of the present invention is to reduce the load applied to the occupant's feet in the event of a vehicle collision, and further to stabilize the pedal at a desired position and to break the carpet by the pedal. An object of the present invention is to provide an automobile pedal device that can reliably prevent the above.
[0018]
[Means for Solving the Problems]
In order to achieve the above object, according to a first aspect of the present invention, there is provided a stopper for restricting the depression amount of a pedal operated by a driver's stepping, and the stopper protrudes from the floor to the passenger compartment side and has a substantially U-section in side view. a formed automobile pedal apparatus to exhibit a shape, the stopper is arranged at a predetermined interval in the longitudinal side of the vehicle front-rear direction, the first inclined front extending to the floor or al upper side a third inclined piece pieces Oyobi rear, the second inclined piece extending in the third inclined side from the end portion of the first inclined piece, an end of the third inclined piece from the end portion of the second inclined piece A flat piece extending substantially parallel to the floor toward the floor, and when the pedal depression load by the driver is equal to or less than a predetermined value, the flat portion and the third inclined piece When the pedal comes into contact with the bent portion and the flat piece, The amount of pedal depression is restricted, and when the depression load exceeds a predetermined value, the stopper is deformed so that the bent portion of the first inclined piece and the second inclined piece protrudes outward. It is characterized by having obtained.
[0019]
The stopper protrudes from the floor toward the passenger compartment and has a substantially U shape in side view. The stopper is deformed when a load exceeding a predetermined value is applied to the stopper. Therefore, in the unlikely event that a vehicle collides and a load exceeding a predetermined value is applied to the stopper, the load applied to the occupant's feet via the pedal can be reduced by deforming the stopper.
Here, when the pedal depression load exceeds a predetermined value, the stopper can be deformed so that the bent portions of the first inclined piece and the second inclined piece protrude outward.
Therefore, it is possible to prevent the first inclined piece and the second inclined piece from interfering with the flat piece by bending the first inclined piece and the second inclined piece to the outside of the stopper.
As a result, the stopper can be smoothly plastically deformed and reliably crushed, so that the load applied to the occupant's feet via the accelerator pedal 16 can be sufficiently reduced.
[0020]
By the way, when the occupant puts his / her foot on the pedal, the angle between the upper part of the ankle (hereinafter referred to as “leg”) and the lower part of the ankle (hereinafter referred to as “foot”) is generally 90 °. Become close.
The state where the ankle is bent to an angle close to 90 ° is close to the bending limit of the ankle. Therefore, if the ankle is further bent from this angle, the ankle is bent forcibly, which places a heavy burden on the ankle.
[0021]
According to the stopper of claim 1, it is possible to prevent the ankle from being burdened. That is, since the stopper can be deformed and the pedal can be moved forward of the vehicle body, the tip of the foot placed on the pedal can be moved forward of the vehicle body.
Therefore, the inclination angle of the foot with respect to the occupant's leg can be made larger than the normal state. Thereby, the bending of the ankle can be afforded, and the load on the ankle can be reduced when a load is applied from the pedal to the occupant's foot.
[0022]
In addition, the stopper is projected from the floor, and the pedal is placed on the stopper. In this way, by attaching the stopper to the floor side, it is possible to stably stop the pedal without wobbling when the pedal is brought into contact with the stopper during normal operation.
Furthermore, since the stopper is protruded from the dashboard and the pedal is brought into direct contact with the stopper, it is not necessary to make the pedal contact with the carpet covering the floor. Therefore, there is no possibility of breaking the carpet covering the floor with the pedal.
[0023]
According to a second aspect of the present invention, the stopper is formed of a member separate from the floor.
By configuring the stopper as a separate member from the floor, for example, the shape and thickness of the stopper can be arbitrarily determined without being affected by the floor. Thereby, the stopper provided with desired rigidity can be formed easily.
[0024]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a perspective view showing a pedal device for an automobile according to the present invention.
The automobile pedal device 10 has a support portion 13 attached to a vertical wall 12a of a dashboard 12 that partitions an engine room and a vehicle compartment 11, and an accelerator lever 15 is rotatably attached to the support portion 13 via a pin 14. An accelerator pedal (pedal) 16 is attached to a front end 15a of 15 (see also FIG. 2), the accelerator pedal 16 is held in the throttle closed position P1 by the spring force of the torsion spring 17, and the inclined wall of the dashboard 12 below the accelerator pedal 16 12b, that is, the stopper 20 is attached to the portion constituting the floor with bolts 21.
[0025]
The torsion spring 17 is attached to the pin 14, and one end (not shown) of the torsion spring 17 is locked to the support portion 13 and the other end 17 a is locked to the accelerator lever 15. The accelerator lever 15 is urged in the direction of the throttle closing position P1 about the pin 14 as an axis.
[0026]
FIG. 2 is a cross-sectional view showing an automobile pedal device according to the present invention.
The stopper 20 is formed so that the upper and lower mounting pieces 23, 24 are flush with the inclined wall 12 b of the dashboard 12, and the first inclined piece obliquely upward from the upper mounting piece 23 toward the lower mounting piece 24. 25, the second inclined piece 26 is extended upward from the end portion of the first mounting piece 25 at an inclination angle larger than that of the first mounting piece 25, and is approximately directed from the end portion of the second inclined piece 26 toward the lower mounting piece 24. The flat piece 27 is extended in parallel, and the third inclined piece 28 is obliquely extended from the end of the flat piece 27 to the lower mounting piece 24 so as to protrude from the inclined wall (floor) 12b of the dashboard 12 toward the vehicle compartment 11 side. In addition, it is formed so as to exhibit a substantially U-shape in a side view.
[0027]
Here, the bent portion between the upper mounting piece 23 and the first inclined piece 25 is the first bent portion 30, the bent portion between the first inclined piece 25 and the second inclined piece 26 is the second bent portion 31, The bent portion of the second inclined piece 26 and the flat piece 27 is the third bent portion 32, and the bent portion of the flat piece 27 and the third inclined piece 28 is the fourth bent portion 33, and the third inclined piece 28 and A bent portion with the lower mounting piece 24 is referred to as a fifth bent portion 34.
[0028]
According to the pedal device 10 for an automobile, when the accelerator pedal 16 is moved downward as indicated by an arrow from the throttle closed position P1 against the spring force of the torsion spring 17 in a normal driving state, the lower end of the accelerator pedal 16 is detected. The accelerator pedal 16 can be positioned at the throttle fully open position P2 by bringing 18 into contact with the flat piece 27 of the stopper 20.
[0029]
Further, since the stopper 20 is protruded from the dashboard 12, when the accelerator pedal 16 is brought into contact with the flat piece 27 of the stopper 20 during normal operation, the accelerator pedal 16 is placed on the stopper 20 and stably throttled. It can be stopped at the fully open position P2.
[0030]
In addition, since the stopper 20 is protruded from the dashboard 12 and the accelerator pedal 16 is brought into direct contact with the stopper 20, a carpet (not shown) covering the inclined wall 12b constituting the floor of the dashboard 12 is used. There is no need to abut the stopper 20.
Therefore, it is possible to reliably prevent the carpet covering the inclined wall 12b from being broken by the lower end 18 of the accelerator pedal 16.
[0031]
Further, the stopper 20 is configured as a separate member from the inclined wall 12b (floor) of the dashboard 12, and the stopper 20 is attached to the dashboard 12 with bolts 21.
Therefore, for example, the shape and thickness of the stopper 20 can be arbitrarily determined without being affected by the dashboard 12. Thereby, the stopper 20 provided with desired rigidity can be formed easily.
[0032]
When the lower end 18 of the accelerator pedal 16 comes into contact with the stopper 20 and a load exceeding a predetermined value is applied to the stopper 20, the stopper 20 is bent at the first to fifth bent portions 30 to 34 to be plastically deformed. It is the member comprised in this way.
[0033]
Next, the effect | action of the pedal apparatus 10 for motor vehicles is demonstrated based on FIGS.
3 (a) and 3 (b) are first operation explanatory views for explaining the operation of the pedal device for an automobile according to the present invention.
In (a), if the vehicle crashes while the occupant is stepping on the accelerator pedal 16 with the load F1, the impact due to the collision is transmitted to the accelerator pedal 16 via the occupant's foot 40.
Therefore, the load F1 of the accelerator pedal 16 increases, and the accelerator pedal 16 moves downward as indicated by the arrow (1) integrally with the accelerator lever 15 with the pin 14 as an axis.
[0034]
In (b), when the accelerator pedal 16 moves to the throttle fully open position P2, the lower end 18 of the accelerator pedal 16 contacts the flat piece 27 of the stopper 20.
Thereby, the load F <b> 2 is applied to the flat piece 27 of the stopper 20 via the accelerator pedal 16. When the load F2 increases and exceeds a predetermined value, the stopper 20 starts to bend at the first to fifth bent portions 30 to 34, and the stopper 20 starts plastic deformation.
[0035]
4 (a) and 4 (b) are second operation explanatory views illustrating the operation of the automobile pedal device according to the present invention.
In (a), the stopper 20 is plastically deformed so as to be crushed by bending the stopper 20 at the first to fifth bent portions 30 to 34. As a result, the accelerator pedal 16 can be moved further forward from the throttle position P2 to the position P3 as indicated by the arrow (2).
[0036]
Thus, by crushing the stopper 20, a part of the load F2 (see FIG. 3B) can be absorbed and reduced to the load F3. Therefore, the load applied to the passenger's foot 40 (see FIG. 3) via the accelerator pedal 16 can be reduced.
[0037]
By the way, when the first inclined piece 25 and the second inclined piece 26 enter the inside of the stopper 16 when the stopper 16 is plastically deformed and crushed, the first and second inclined pieces 25 and 26 that have entered are flat pieces. 27 to prevent the stopper 20 from being crushed smoothly.
Therefore, the first inclined piece 25 and the second inclined piece 26 are formed in a substantially rectangular shape, and the second bent portion 31 formed by the first inclined piece 25 and the second inclined piece 26 is formed outside the stopper 20. Protruded.
[0038]
Thereby, when the stopper 20 is plastically deformed and crushed, the first inclined piece 25 and the second inclined piece 26 can be bent to the outside of the stopper 20, and the first inclined piece 25 and the second inclined piece 26 are flat pieces. 27 can be prevented from interfering.
[0039]
In (b), since the flat piece 27 does not interfere with the first inclined piece 25 and the second inclined piece 26 when the stopper 20 is crushed, the plastic deformation of the stopper 20 proceeds more smoothly, and the stopper 20 is crushed reliably. be able to.
As a result, the accelerator pedal 16 can be moved further forward from the position P3 to the position P4 as indicated by the arrow (3).
[0040]
Thus, by crushing the stopper 20 reliably, a part of the load F3 (see (a)) can be absorbed and reduced to the load F4. Therefore, the load applied to the passenger's foot 40 (see FIG. 3) via the accelerator pedal 16 can be sufficiently reduced.
[0041]
FIG. 5 is a third operation explanatory view illustrating the operation of the automobile pedal device according to the present invention.
By crushing the stopper 20 by plastic deformation, the load applied to the occupant's foot 40 can be absorbed and the load F4 applied to the occupant's foot 40 can be sufficiently reduced.
[0042]
By the way, when the occupant's foot 40 is placed on the accelerator pedal 16, the upper part 42 of the ankle 41 (hereinafter referred to as “leg”) and the lower part 40 of the ankle 41 (hereinafter referred to as “foot”) The angle is generally close to 90 °.
The bending limit of the ankle 41 is approximately 90 °. If the ankle 41 is further bent from this angle, the bending is forced beyond the bending limit of the ankle 41, and a great burden is imposed on the ankle 41.
[0043]
According to the pedal device 10 for an automobile according to the present invention, it is possible to prevent a heavy burden on the ankle 41.
That is, by causing the stopper 20 to be plastically deformed, the accelerator pedal 16 can be further moved forward from the position in contact with the stopper 16.
[0044]
Therefore, the tip of the occupant's foot 40 can be moved forward of the vehicle body, so that a large inclination angle θ of the foot 40 with respect to the occupant's leg 42 can be secured.
Thereby, the bending of the ankle 41 can be afforded, and the burden on the ankle 41 can be reduced when the ankle 41 is placed on the occupant's foot 40 via the accelerator pedal 16.
[0045]
In the above-described embodiment, an accelerator pedal has been described as an example of a pedal. However, the present invention can be applied to other pedals.
In the above embodiment, a part of the dashboard 12 (inclined wall 12b) has been described as a floor. However, the present invention is not limited to this, and the present invention can be applied to a floor formed of other members such as a floor panel. .
[0046]
Furthermore, in the above-described embodiment, the example in which the stopper 20 is attached to the inclined wall 12b of the dashboard 12 with the bolts 21... Is not limited thereto, but the stopper 20 is welded to the inclined wall 12b of the dashboard 12. The same effect can be obtained even if it is attached to.
[0047]
Furthermore, the shape of the stopper 20 is not limited to the above embodiment. In short, what is necessary is just to form so that it may deform | transform when the load concerning a pedal exceeds predetermined value.
In the embodiment, the example in which the stopper 20 is plastically deformed has been described. However, the present invention is not limited to this, and the stopper 20 may be elastically deformed to obtain the same effect.
[0048]
【The invention's effect】
The present invention exhibits the following effects by the above configuration.
According to the first aspect of the present invention, the stopper is protruded from the floor toward the passenger compartment and has a substantially U shape in a side view, and is deformed when the load exceeds a predetermined value.
Thereby, when a vehicle collides and a load exceeding a predetermined value is applied to the stopper, the load applied to the occupant's feet via the pedal can be reduced by deforming the stopper.
Here, when the pedal depression load exceeds a predetermined value, the stopper can be deformed so that the bent portions of the first inclined piece and the second inclined piece protrude outward.
Therefore, it is possible to prevent the first inclined piece and the second inclined piece from interfering with the flat piece by bending the first inclined piece and the second inclined piece to the outside of the stopper.
As a result, the stopper can be smoothly plastically deformed and reliably crushed, so that the load applied to the occupant's feet via the accelerator pedal 16 can be sufficiently reduced.
[0049]
In addition, the pedal can be moved forward of the vehicle body by deforming the stopper, so that the tip of the foot placed on the pedal can be moved forward of the vehicle body.
Therefore, the inclination angle of the foot with respect to the occupant's leg can be made larger than the normal state. Thereby, the bending of the ankle can be afforded, and the load on the ankle can be reduced when a load is applied from the pedal to the occupant's foot.
[0050]
In addition, the stopper is projected from the floor, and the pedal is placed on the stopper. In this way, by attaching the stopper to the floor side, when the pedal is brought into contact with the stopper during normal operation, it is possible to stably position the pedal at a predetermined position without causing the pedal to wobble.
[0051]
Furthermore, since the stopper is protruded from the dashboard and the pedal is brought into direct contact with the stopper, it is not necessary to make the pedal contact with the carpet covering the floor.
Thereby, it can prevent reliably that the carpet which covers a floor is torn with a pedal.
[0052]
According to the second aspect of the present invention, the stopper is formed of a member separate from the floor, and for example, the shape of the stopper and the plate thickness can be arbitrarily determined without being affected by the floor.
Thereby, since the stopper provided with desired rigidity can be formed easily, an increase in cost can be suppressed.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an automobile pedal device according to the present invention. FIG. 2 is a cross-sectional view showing an automobile pedal device according to the present invention. FIG. 4 is a second operation explanatory diagram illustrating the operation of the automobile pedal device according to the present invention. FIG. 5 is a third operation explanatory diagram illustrating the operation of the automobile pedal device according to the present invention. 6 is a diagram illustrating a conventional automobile pedal device. FIG. 7 is a diagram illustrating another example of a conventional automobile pedal device. FIG. 8 is a diagram illustrating another example of a conventional vehicle pedal device. Figure [Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Pedal apparatus for motor vehicles, 11 ... Car compartment, 12 ... Dashboard, 12b ... Inclined wall (floor) of a dashboard, 16 ... Accelerator pedal (pedal), 20 ... Stopper , 25 ... 1st inclination piece, 26 ... 1st 2 inclined pieces, 27 ... flat pieces, 28 ... third inclined pieces, 31 ... second bent portion, 33 ... fourth bent portion .

Claims (2)

A pedal device for an automobile provided with a stopper that regulates the amount of depression of the pedal operated by the driver's stepping, the stopper projecting from the floor to the passenger compartment side, and having a substantially U-shaped cross section in a side view Because
The stopper is
Are arranged at predetermined intervals in the longitudinal side of the longitudinal direction of the vehicle body, and a third inclined piece of the first inclined piece and the rear side of the front extending to the floor or al top side,
A second inclined piece extending from the end of the first inclined piece to the third inclined piece side;
A flat piece extending substantially parallel to the floor from the end of the second inclined piece toward the end of the third inclined piece,
When the pedal depression load by the driver is equal to or less than a predetermined value, the pedal abuts against the bent portion of the flat portion and the third inclined piece and the flat piece, thereby regulating the amount of depression of the pedal. And
When the stepping load exceeds a predetermined value, the stopper can be deformed so that the bent portion of the first inclined piece and the second inclined piece protrudes outward. Pedal equipment for automobiles.   The automobile pedal device according to claim 1, wherein the stopper is formed of a member separate from the floor.

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